Finding the Fourth Proportional to 18,529,073.60, 27,804,529.20 and 7,745,543.60
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Solution
The fourth proportional to 18,529,073.60, 27,804,529.20 and 7,745,543.60 is: 11,622,879.69
Step by Step Solution
- Step 1: Write the proportion equation
18,529,073.60 : 27,804,529.20 = 7,745,543.60 : x - Step 2: Convert to fraction form
18,529,073.60/27,804,529.20 = 7,745,543.60/x - Step 3: Cross multiply
18,529,073.60x = 27,804,529.20 × 7,745,543.60 - Step 4: Simplify right side
18,529,073.60x = 215,361,193,196,073.09 - Step 5: Solve for x
x = 215,361,193,196,073.09/18,529,073.60 - Step 6: Final answer
x = 11,622,879.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.